baber/WOPTO huggingface dataset:
Patent GB-184814-A (GB)
Title: Improvements in high frequency telephone systems
IPC: H04J1/08
Filed: 1922-08-21
Abstract: 184,814. Ges. f³r Drahtlose Telegraphie. Aug. 22, 1921, [Convention date]. Manual exchange systems and apparatus.-In a high-frequency telephone system, the line conductors are grouped together in cables, the same high frequency being used in the same cable for all conversations in the same direction. Fig. 1 shows the arrangement of apparatus at one end of a cable C consisting of two pairs of conductors. Carrier currents generated by a machine A pass through filters MF to speech modulators S, where they are modulated by speech currents coming over the lines L and balancing arrangements B. The modulated carrier currents then pass over line filters LF to the cable C. Westbound carrier currents, which are of different frequency from the eastbound currents, are confined to their proper paths (over line filters RF, amplifiers D, the balancing arrangements B, and lines L) by the filters LF, which transmit the eastbcund carrier currents but reject the westbound ones. The filters MF have a range, the upper limit of which is below the sum of the generator frequency and the speech frequency, thus preventing back action of modulated carrier currents on the generator A. Low-frequency speech lines l are protected from carrier frequencies by filters F, which are preferably of the type shown in Fig. 4. The filters MF, LF, RF are conveniently of the kind shown in Fig. 3. The Specification as open to inspection under Sect. 91 (3) (a) states also that calling may be effected by superimposing an audible-frequency current on the modulator S at the transmitting end, thereby causing a sharp rise in anode current at the receiver D and operating a relay to signal the wanted party. This subject-matter does not appear in the Specification as accepted.
Patent GB-1366627-A (GB)
Title: Universal coupling
IPC: F16D3/60
Filed: 1971-08-10
Abstract: 1366627 Universal couplings; linkwork A S LAMBURN 10 Aug 1971 [12 May 1970 (2)] 22816/70 and 22817/70 Headings F2U and F2K A universal coupling comprises two shaft mountable members 19, 20 connected by a centring device (e.g. a ball 14 in a socket 10), each have radially outwardly extending arms 15, 25 whose outer ends 16, 26 are connected by links 28a, 28c, 29b, 29d, 35 arranged to be in tension when transmitting torque in one direction. The links 28a ... 28d and 29a ... 29d may be of stranded wire, and be lubricated and enclosed in a sheath. Various methods of mounting these links in the ends 16, 26 are described, Figs. 4 to 7 (not shown). The member 20 may be clamped against a combined thrust and journal bearing (not shown) by a bolt 33, 38 as in Fig. 10.
Patent GB-587607-A (GB)
Title: Improvements in or relating to electric motors with speed reduction gearing
IPC: H02K7/116
Filed: 1944-11-17
Abstract: 587,607. Epicyclic gearing: LANCASTER, S. D. Nov. 17, 1944, No. 22862. [Class 80 (i)] [Also in Group XXXV] In an electric motor having speed reduction gearing embodied within the motor casing 16, the spindle 19 of the motor armature is supported by an inner closure disc 17 and has an eccentric portion 20 which imparts a gyratory motion to a disc 22 carrying in internally and externally toothed ring 23. The external teeth of this ring engage with a fixed ring 26 mounted in the casing and the internal teeth engage with and drive a gear 32 secured to the output shaft 31 which is supported by an outer closure disc 28 of the casing.
Patent GB-891410-A (GB)
Title: Apparatus for cleaning machines and room surfaces
IPC: D01H11/00
Filed: 1959-07-03
Abstract: 891,410. Cleaning spinning machines. PARKSCRAMER CO. July 3, 1959 [Nov. 10, 1958], No. 22923/59. Class 120(3) [Also in Group XXVI] An air-blowing unit for cleaning spinning machines and rooms containing those machines is mounted for movement along a track and comprises a single air impeller, means for directing at least one stream of air in a substantially constant direction from a portion of the air flow from the impeller, and means for directing another portion of the air flow in a constantly changing direction, the latter means being rotated about a substantially vertical axis while the unit is moving along the track. A blower travelling on a track 10, Fig. 1, above spinning frames 11 comprises an impeller 27, Fig. 4, having blades 31, which draw in air around the driving motor 20 from an inlet opening 51 and discharge it into a pair of casings 35, 36. Casing 35 has a pair of oppositely extending discharge ducts 40, 41 preferably curving downwards and each connected to a flexible tube 42 having nozzles 43 for directing air against the spinning frames 11 and, it may be, downwardly against the floor. Branch pipes 45 may be provided for directing air against the drafting rolls of the spinning frames 11. Casing 36 is slowly rotated through a belt drive 85, bevel gearing 100 and a cardan shaft 103 from one of the track wheels 23, which in turn is driven by the motor 20 through a gear box 21. The casing 36 discharges through at least one channel 57 containing a curved deflector plate 60 which deflects the air upwardly at an angle to sweep the ceiling and walls as the casing 36 rotates. The deflector plate 60 is flexible and its discharge angle can be adjusted by adjusting the position of a bracket 61. Casing 36 is mounted for rotation concentrically with impeller 27 by means of a hub 82, preferably of resilient material, positioned on a bearing 83 carried by the motor shaft. A bearing ring 66 may be provided on pulley 65 to engage a similar ring 67 secured to the stationary casing 35. Small openings may be provided in the casings 35, 36 to direct streams of air on to the casing 36 and the ducts 40, 41 to keep them free from lint. Casing 36 may be driven by means separate from the motor 20. Specification 824,022 is referred to.
Patent GB-975765-A (GB)
Title: Improvements relating to contact springsets
Inventor: JONES RAYMOND DENNIS
IPC: H01H50/56
Filed: 1962-06-14
Abstract: 975,765. Contact members for switches; terminal boards and blocks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 7, 1963 [June 14, 1962], No. 22929/62. Headings H2B and H2E. The method of making a contact springset described in Specification 946,130 is modified in that cavities 3 for receiving intermediate portions 6 of contact springs 5 are provided in at least two sides of a hollow body 1 which will subsequently form part of the completed double contact springset. In an alternative method the hollow insulating body 1 is replaced by a metal body as described in Specification 975,766. Specification 855,908 also is referred to.
Patent GB-534655-A (GB)
Title: Improvements in or relating to valve tappet mechanisms and like vibratory mechanicallinkages
IPC: F01L1/22
Filed: 1939-08-09
Abstract: 534,655. Valve tappets, internal-combustion engines. TRIGGS W. W. (Thompson Products Inc.). Aug. 9, 1939, No. 22957. [Class 80 (iii)] [Also in Group XXVII] A valve tappet or like vibratory y mechanical linkage, having driving and driven links BB, 22, with a clearance 20 therebetween which is closed upon valve actuation, is provided with an inertia member 32 which acts by impact when the links return to their initial positions to increase the said clearance 20, means also being provided to thereafter eliminate the said aditional clearance. As shown, a wedge 26 pressed in place by a spring DD is positioned between a valve rod 22 and tappet BB, a clearance 20 being maintained between the parts. A weight 32 is pivoted at 28 to the sleeve 16 carrying the links. In operation, as the valve carried by the rod 22 reaches its fully open position the weight 32 will swing to the dotted position. As the linkage moves towards the valve closing position the weight 32 will swing downwardly, strike against the wedge 26 and displace it to temporarily increase the clearance between the members 22, BB. Immediately afterwards the spring DD moves the wedge 26 in the reverse direction to adjust the parts to the normal clearance 20. In a modification the valve tappet comprises two parts screwed together and spring biassed to maintain the correct clearance and the inertia member is guided by helical ribs on one of the parts and acts by impact at the end of the valve closing stroke to screw the two parts one into the other. In another modification the valve rocker arm of an internal-combustion engine is mounted on an eccentric around which an annular inertia member is carried.
Patent GB-1424978-A (GB)
Title: Apparatus for handling card-like members carrying an elongated magnetic recording medium
IPC: G09B5/06
Filed: 1974-05-23
Abstract: 1424978 Recording and playback of magnetic record cards BELL & HOWELL CO 23 May 1974 [6 June 1973] 23071/74 Heading G5R A card 24 carrying parallel magnetic tracks 28a, 28b is driven past a magnetic head 26 which is movable to engage either track by manually operable means 64, 60, 67, a second manually operable means 70 for switching from playback to recording being disabled when the head 26 is engaging one 28b of the tracks, e.g. to prevent a student from erasing or recording on an instructor's track. As shown, when the head 26 is in the lower position, Fig. 1, depression of a pivoted button 70 causes its depending flange 74 to push an interposing member 78 which in turn pushes one arm 76a of a crank 76 which is thereby turned so that its other arm 76b operates a switch 81, whereas movement of the head 26 to the upper position, Fig. 4, moves a slider 82 to the right, withdrawing the interposing member 78 to render the button 70 ineffective. This disabling may be overriden by turning a knob 102 to insert a second interposing member 92. Vertical insertion of a card 24 is blocked by a member 58a, but a card correctly inserted along a guide channel 18 turns the member 58a to start a motor 32 which drives a card-feed capstan 25.
Patent GB-185948-A (GB)
Title: An improved apparatus for stopping railway locomotives automatically from the track
IPC: B61L3/04
Filed: 1921-08-31
Abstract: 185,948. G÷ricke, E. Aug. 31, 1921. Systems for controlling travel for a fixed distance or number of revolutions.-In an apparatus for stopping a railway locomotive from the track, with an electric motor acting upon the control apparatus, all the devices and leads belonging to the electric system are mounted upon the locomotive and the starting of the electric motor is effected by the track apparatus closing a shunt circuit which causes the motor circuit switch to close; this circuit remains closed until the valve mechanism has completed the necessary movement. The electric motor i operates the valve cock o on the brake pipe p through toothed gearing k, k<1> and worm gearing m, n. It is connected to the battery c and the switch h. When the track signal is at danger a tilting tongue is moved into the path of the ' releaser ' a on the locomotive causing it to complete the circuit of the coil b. The lever f is thus operated to close the switch h to start the motor i which operates the cock o to open the brake pipe. The cock carries a cam-plate q engaging a spring pressed rod s which is provided at its end with a tooth u pressed upward by a spring to engage one arm of the switch v. When the cock o has rotated through 90‹ the rod s snaps over one of the cam surfaces and pulls the arm of the switch v on to the contact y and the tooth u then slides away under the arm. The coil e is energized by this and attracts its armature d' thereby opening the switch h to stop the motor. The spring x restores the switch v to its original position.
Patent GB-1022352-A (GB)
Title: Improvements relating to intercoolers for rotary gas compressors
Inventor: ADAMS THOMAS EDWARD
IPC: F04D17/12
Filed: 1961-06-25
Abstract: 1,022,352. Tubular apparatus for cooling gases. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 25, 1962 [June 27, 1961], No. 23226/61. Heading F4S. [Also in Division F1] A heat exchanger located within the casing 1 of a rotary multi-stage compressor for cooling the compressed gas as it flows from one stage to the next, consists of an annular structure comprising two semi-circular parts each including a number of arcuate cooling tubes 8. Each semicircular part comprises two quadrants 5, 5<SP>1</SP> joined to a common header 11. Cooling medium, e.g. water, passes from an inlet 13 through header chamber 12a, the cooling tubes 8 and header chamber 12b to an outlet 14. The header may have a chamber intermediate the chambers 12a, 12b and each end cap 10 may have a partition, so that the cooling medium makes four passes through the cooling tubes. The cooling tubes may have external helical fins. Strengthening plates 9 are provided where necessary.
Patent GB-312865-A (GB)
Title: Drawing process for the production of round rods of steel, silver-steel, tool-steel, high-speed-tool-steel, free from pores and possessing a high brilliant polish and absolutely uniform cross-sections
IPC: B21C1/00
Filed: 1928-08-13
Abstract: 312,865. M÷ller, H. Aug. 13, 1928. No Patent granted (Sealing fee not paid). Rods and bars. - Round rods of silver-steel, tool-steel, high-speed tool-steel &c. of high polish are made by heating a coil of wire, pickling and drawing and then cutting the drawn wire into rods which are collected into bundles and heated. The heated rods are then ground for 12-24 hours in a rotary drum charged with emery &c. The ground rods are finally subjected to a light drawing operation.
Patent GB-1299656-A (GB)
Title: Improvements in or relating to machine tools
Inventor: JEANNERET JULES LOUIS
IPC: B23Q16/00
Filed: 1970-05-14
Abstract: 1299656 Lathes J L JEANNERET 14 May 1970 [21 May 1969] 23326/70 Headings B3B and B3T Apparatus for disconnecting the drive from a driven part of a machine tool, such as the drive between a saddle and lead screw of a lathe comprises a cam 22 mounted on a shaft 3, and rotatable therewith, the cam having three distinct cam surface portions 31, 33, and 34, a roller 23 biased against the cam and being in equilibrium therewith when contacting the first or third cam portion but abruptly rotating the cam between the first and third portions when in contact with the second portion, which action effects disengagement between the split nut 11 and lead screw 12. The apparatus is manually set by movement of a handle 4 to position the cam so that the roller engages the first cam portion 31, and a projecting part 30 of the cam member engages a pin 21 on a trip lever 20, which is mounted on the shaft 3. When the lever engages a stop 15 on the lathe during traverse of the carriage the lever is deplaced thereby dislodging the cam from its equilibrium position relative to the roller 23 and is thereby abruptly rotated through the second portion to the third portion releasing the nut from the lead screw. To avoid disengagement of the split nut 11 before the cam 22 has commenced its abrupt movement, an actuating spindle 7 located in a bore 6 of the sleeve 3<SP>1</SP> secured to the shaft 3 is connected to the sleeve 3<SP>1</SP> by way of a pin and slot 40, 41 respectively, the slot being larger than the diameter of the pin thus permitting a limited degree of angular play between the spindle 7 and sleeve 3<SP>1</SP> prior to the actuation of the split nut. A gear 8 on the spindle 7 engages with rack portions 9 and 10 on the nut halves 11 to effect actuation thereof. In an alternative embodiment the mechanism may be incorporated in a lathe saddle having an existing automatic stop mechanism the cam being actuated by a push rod operable from a bell crank lever pivotable when one arm thereof abuts a stop on the lathe bed.
Patent GB-1168348-A (GB)
Title: Video Amplifier Circuit for Colour Signals and/or Chrominance Signals
IPC: H04N9/72
Filed: 1967-05-19
Abstract: 1,168,348. Video amplifier arrangement. INTERNATIONAL STANDARD ELECTRIC CORP. 19 May, 1967 [23 June, 1966], No. 23392/67. Addition to 1,158,779. Heading H4F. The Specification describes a colour video amplifier arrangement basically comprising three amplifier circuits (only one shown) as shown in Fig. 1 of the parent Specification 1,158,779, one for each colour or colour difference signal, and sharing the same sample controlling line fly-back pulse, via a variable resistor 34, Fig. 1. The amplitude of the controlling line fly-back pulse determines the amplification of the respective D.C. video amplifier. Since said pulses are applied with constant ratio (as determined by the setting of resistor 34) to the three video amplifier diodes 13, the white colour balance between the combined outputs of the amplifiers will remain constant, resistor 34 acting as a black and white brilliance control. In the arrangement of Fig. 2, resistors 34 is replaced by a circuit 29, 30, 31, varying the cut-off level of the line fly-back pulses.
Patent GB-508436-A (GB)
Title: Improvements in or relating to gas turbines
IPC: F01D5/08
Filed: 1938-08-08
Abstract: 508,436. Gas turbines. MARTINKA, M. Aug. 8, 1938, No. 23413. [Class 110 (iii)] In a cooling arrangement for the rotors of gas turbines, the blade shanks are formed as centrifugal blower buckets for circulating cooling gas, their outer lateral walls being flush with the faces of the rotor disc and being provided with inlet openings between the rotor disc and the shanks and outlet openings adjacent the blade rim. Each blade structure, Fig. 5, comprises a blade 3b an I-section shank 4b, and a root 5b. Alternate blades 3a, 3b, Fig. 6, have the grooved side of the root oppositely placed so that a pair of roots are accommodated in each slot of the rotor disc 50, a slight initial play being left to allow for expansion when running. Inlet openings 55<1>, between the tips of the roots and the bottoms of the slots, communicate with the interior of the blade shanks by means of grooves 5i in the abutting surfaces of the roots. Other inlet openings 4e are formed in the lateral walls of the shanks and holes 4c near the blade rim form outlet openings. Radiused corners 3o deflect the outflowing air causing it to circulate in paths x, y. Blind holes 3c in the blades reduce their cross-sectional area and thus the amount of heat conducted radially through the blades. For cooling the rotor disc 50, Fig. 1, ribs 30, 32 in the turbine casing define annular channels in which air is circulated by the frictional drag of the rotor disc. Deflector plates may be mounted in the channels to impart a swirling motion to the air. A water jacket surrounds the air spaces, the water first entering chambers 44 to cool the air circulating through the blade shanks, then passing through chambers 42 in direct contact with the ribs 32, and finally through chambers 40 where it absorbs the heat radiated from the ribs 30. The water is pumped round a closed circuit including a radiator for re-cooling it.
Patent GB-353269-A (GB)
Title: Thermostatic control mechanism
IPC: G05D23/02
Filed: 1930-08-05
Abstract: 353,269. Thermostats. WILCOLATOR CO., 17, Nevada Street, Newark, New Jersey, U.S.A.-(Assignees of Fonseca, E. L. ; 17, Nevada Street, Newark, New Jersey, U.S.A.) Aug. 5, 1930, No. 23464. Convention date, Aug. 6, 1929. [Class 135.] A thermostat for gas ovens has the valve casing and associated temperature responsive means detachably secured to a fitting connected to the fuel supply and delivery pipes and arranged inside the oven. The valve casing 11 is formed with a boss 12 supporting an expansible tube 13 connected by a cap 14 having a bearing-plate 16 with a non-expansible rod 15. The rod 15 engages a bearing-plate 17 in a member 18 having a screwthreaded engagement with an abutment 23 held against rotation by a bifurcated arm 24 engaging a fixed pin 25. The valve member 20 which has a knife edge contacting face 21 is loosely mounted on the member 18 and is held against the abutment 23 by a spring 26 housed in a recess in a removable cover 27. An adjusting spindle 29 is mounted in the cover 27 and has a projection 30 engaging a slot in the member 18 and a sealing collar held in engagement with the cover by a spring 32 bearing against an abutment 33 mounted in a groove on the spindle. A block 34 and disc 35 secured to the spindle has holes to receive projections 37 on an insulating manipulating handle 38 and has a flange to support an indicating drum 42 co-operating with a pointer 44 on a disc 45 secured to the outside of the oven. The internal ficting is held in position by a screw 47 and is divided into two chambers 55a, 55b connected by a byepass passage 61 controlled by a valve 63 operable from the outside of the oven on the removal of a cap 65. The two chambers which are coupled to the gas pipes have spigots 57 adapted to engage sockets 60 on an extension of the valve casing and leading to the two sides of the valve. A single screw 58 holds the valve casing in engagement with the internal fitting 54. Specification 335,819, [Class 135, Valves &c.], is referred to.
Patent GB-847473-A (GB)
Title: Improvements relating to coupled high-frequency electrical resonators
Inventor: CHODOROW MARVIN
IPC: H01J23/24
Filed: 1956-09-17
Abstract: 847,473. Microwave filters. VARIAN ASSOCIATES. Sept. 17, 1956, No. 23538/59. Divided out of 847,471. Class 40(8). Negative inductive coupling is provided between successive resonant sections of a periodically loaded waveguide by means of an S configuration of the loading discs. The method of the invention is a modification of those described in Specifications 847,471 and 847,472 and is based upon the known construction of Fig. 1 in which successive cavities 47, 48, capacitatively coupled by central apertures 3 in loading discs 49, 50, 51, are additionally coupled by a loop 52, 53 of reverse-S shape which provides negative mutual inductance. According to the invention the loading disc 54, Fig. 3, between two successive sections is provided with a central aperture 3 and a number of radial slits. Alternate segments between the slits are bent into an S configuration. The remainder of the segments may be bent into a reverse-S shape.
Patent GB-905261-A (GB)
Title: A sawing machine comprising a circular saw provided with an internal toothing
IPC: B27B5/14
Filed: 1961-06-29
Abstract: 905,261. Sawing. KOELEGA, W., and JETTEN, E. J. June 29, 1961 [June 30, 1960], No. 23538/61. Class 145. A sawing-machine comprises a swivelling frame 1, an internally-toothed annular saw 5 which is of either constant thickness throughout or has its greatest thickness adjacent the internal teeth 7 and is carried on the frame on three supports 11 distributed over the periphery of the saw, a motor 12 for rotating the saw through at least one of the supports, and fluid-operated means 2 operative upon the frame for moving the saw relatively to a workpiece 6. The saw is supported in a trough-shaped recess in the frame 1 on the three supports 11, each of which consists of an endless chain 14 trained over sprocket-wheels 13 on shafts 17 journalled in the frame and arranged to mesh with external teeth 8 on the saw; the teeth 8 are received in central peripheral recesses in the sprocket-wheels 13. At least one of the shafts 17 of at least one of the chains 14 is driven by the motor 12. The frame 1 can be swung about its pivot 4 by hydraulic or pneumatic means. In order to enable removal of the saw, one part of the free end of the frame is formed so as to be tiltable relatively to the frame and carries one of the supports 11.